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  2. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Many more tube ratings exist, often country-specific. The Nominal Length may not exactly match any measured dimension of the tube. For some tube sizes, the nominal length (in feet) is the required spacing between centers of the lighting fixtures to create a continuous run, so the tubes are a little shorter than the nominal length.

  3. Bi-pin lamp base - Wikipedia

    en.wikipedia.org/wiki/Bi-pin_lamp_base

    The suffix after the G indicates the pin spread; the G dates to the use of Glass for the original bulbs. GU usually also indicates that the lamp provides a mechanism for physical support by the luminaire: in some cases, each pin has a short section of larger diameter at the end (sometimes described as a "peg" rather than a "pin" [2]); the socket allows the bulb to lock into place by twisting ...

  4. Television content rating system - Wikipedia

    en.wikipedia.org/wiki/Television_content_rating...

    Singapore has adopted the use of TV Ratings from 21 October 2011. They consist of PG and PG13 ratings for Free-to-Air TV and NC16 and M18 ratings in addition to the PG and PG13 ratings for Pay TV channels. For Free-to-Air TV, the shows rated PG may be aired anytime while PG13 should air between 10pm to 6am. For Pay TV, PG13 rated programmes can ...

  5. Comparison of display technology - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_display...

    TV: Yes DLP front-projection Flat (limited only by brightness) TV or presentation Yes LCoS self-contained rear-projection Flat 110 [13] 279 TV: Yes LCoS front-projection Flat (limited only by brightness) TV or presentation Yes Laser self-contained rear projection Flat lenticular: 75 [14] 191 TV: Yes LED: Flat 279.92 [15] 711 Billboards, TV: Yes ...

  6. GU10 - Wikipedia

    en.wikipedia.org/wiki/GU10

    GU10 may refer to: A bi-pin connector for light bulbs; GU10 (album) from Global Underground; Global Underground 010: Athens, a mix album by Danny Tenaglia;

  7. High-CRI LED lighting - Wikipedia

    en.wikipedia.org/wiki/High-CRI_LED_lighting

    The "warmer" light colors, such as a 2700 K incandescent bulb or a 1700 K candlelight, are more easily reproduced than more neutral white lights, such as 4800 K direct sunlight, and thus usually have higher CRI ratings in alternative light sources such as CFL and LED bulbs; "warmer" light (redder) naturally renders colors less accurately.